diff --git a/src/game.coffee b/src/game.coffee
index 719760a..94a6324 100644
--- a/src/game.coffee
+++ b/src/game.coffee
@@ -85,7 +85,7 @@ app.game =
   availableSiloStorage: ->
     space = 50
     for tile in app.game.map
-      space += tile.spaceProvided if tile.spaceProvided
+      space += tile.entity.spaceProvided if tile.entity
     space
 
   usedSiloStorage: ->